Ramirez, A. und Sauer, D. und Lamers, M. und Billen, N. und Stahr, K. (2009) CO2 and CH4 fluxes and carbon stock changes of peat soils in relation to differences in soil water content. In: Jahrestagung der DBG 2009: Böden - eine endliche Ressource, September 2009, Bonn.
![[img]](https://eprints.dbges.de/style/images/fileicons/application_pdf.png) |
PDF (Poster presentation)
- Präsentation
Restricted to Nur registrierte Benutzer Herunterladen (42kB) | Eine Kopie anfordern |
Kurzfassung
In natural conditions peat soils exhibit high groundwater levels leading to a reduction of mineralization processes and hence favoring the accumulation of organic matter. Therefore peat soils under anaerobic conditions are considered to be a large sink of atmospheric CO2, but a source of methane (CH4). Drosler et al (2007) reported a high average CH4 flux of 1,27 mg C m2 h-1 from peat soils in Germany and the Netherlands under saturated conditions. Historically, more than half of the peat soils in Germany have been drained for agricultural purposes, and many of them are currently being restored by raising the groundwater levels. The effect of restoration on the total soil C emission is still unclear, due to the high temporal variability of CO2 and CH4 fluxes, often associated with fluctuations of the water table. This study 1) compares CO2 and CH4 fluxes from Histosols of the Danube floodplain near Ulm (S-Germany), differing in water regime from August 2008 to January 2009, and 2) estimates the contribution of vegetation cover to soil C emission.
| Eintragstyp: | Konferenz- oder Workshop-Beitrag ("Berichte der DBG") |
|---|---|
| Stichwörter: | greenhouse gas emissions, peat soils, groundwater level. |
| Bereiche: | Kommissionen > Kommission IV: Bodenfruchtbarkeit und Pflanzenernährung |
| Benutzer: | Andrea Frauenknecht |
| Hinterlegungsdatum: | 30 Nov 2009 16:26 |
| Letzte Änderung: | 13 Dez 2015 16:24 |
| URI: | https://eprints.dbges.de/id/eprint/429 |
Aktionen (Anmeldung erforderlich)
 |
Eintrag anzeigen |
